.public_center {
  display: flex;
  align-items: center;
  justify-content: center;
}


.at-icon-file-pdf {
  position: relative;
}

.at-icon-file-pdf::after {
  content: "\e921";
}

.at-icon-file-pdf::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  content: "pdf";
  font-size: 16px;
  color: #000000;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.at-icon-file-pptx {
  position: relative;
}

.at-icon-file-pptx::after {
  content: "\e921";
}

.at-icon-file-pptx::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  content: "pptx";
  font-size: 16px;
  color: #000000;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.at-icon-file-txt {
  position: relative;
}

.at-icon-file-txt::after {
  content: "\e921";
}

.at-icon-file-txt::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  content: "txt";
  font-size: 16px;
  color: #000000;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.at-icon-file-ppt {
  position: relative;
}

.at-icon-file-ppt::after {
  content: "\e921";
}

.at-icon-file-ppt::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  content: "ppt";
  font-size: 16px;
  color: #000000;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.at-icon-file-docx {
  position: relative;
}

.at-icon-file-docx::after {
  content: "\e921";
}

.at-icon-file-docx::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  content: "docx";
  font-size: 16px;
  color: #000000;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.at-icon-file-zip {
  position: relative;
}

.at-icon-file-zip::after {
  content: "\e921";
}

.at-icon-file-zip::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  content: "zip";
  font-size: 16px;
  color: #000000;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.font_hide {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.font_noHide {
  display: -webkit-box;
  overflow: hidden;
  white-space: normal !important;
  text-overflow: clip !important;
  word-wrap: break-word;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

::-webkit-scrollbar {
  display: none;
}
view,
swiper,
swiper-item,
navigator {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  white-space: pre-line;
  word-break: break-all;
}

.Achievement_update_rule {
  color: rgba(255, 44, 65, 1);
  font-size: 24px;
}

.Achievement_bottom_liner {
  height: 1px;
  width: 100%;
  background: #eeeeee;
}

.default_placeholder {
  color: #999999;
}


::-webkit-scrollbar {
  display: none;
}

.color_style1 {
  color: #0f1927;
}

.color_style2 {
  color: #1D2835;
}

.color_style3 {
  color: #4e5966;
}

.color_style4 {
  color: #818a96;
}

.color_style5 {
  color: #bec3c9;
}

.color_style6 {
  color: #eceefe;
}

.color_style7 {
  color: #f5f5f5;
}

.color_style8 {
  color: #f5f7fa;
}

.color_style9 {
  color: #f8f8f9;
}

.color_style10 {
  color: #7d521c;
}

.color_style11 {
  color: rgba(18, 116, 255, 1);
}



.font_36 {
  font-size: 36px;
  line-height: 50px;
}

.font_34 {
  font-size: 34px;
  line-height: 48px;
}

.font_32 {
  font-size: 32px;
  line-height: 44px;
}

.font_30 {
  font-size: 30px;
  line-height: 42px;
}

.font_28 {
  font-size: 28px;
  line-height: 40px;
}

.font_26 {
  font-size: 26px;
  line-height: 36px;
}

.font_24 {
  font-size: 24px;
  line-height: 34px;
}

.font_22 {
  font-size: 22px;
  line-height: 30px;
}

.font_20 {
  font-size: 20px;
  line-height: 28px;
}

.font_bold {
  font-weight: 500;
}

.math_icon {
  background: url('https://gygj-wechat.oss-cn-hangzhou.aliyuncs.com/answerImage/image39.png') no-repeat;
  background-size: 100% 100%;
}

.Chinese_icon {
  background: url('https://gygj-wechat.oss-cn-hangzhou.aliyuncs.com/answerImage/image40.png') no-repeat;
  background-size: 100% 100%;
}

.english_icon {
  background: url('https://gygj-wechat.oss-cn-hangzhou.aliyuncs.com/answerImage/image41.png') no-repeat;
  background-size: 100% 100%;
}